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"      Red we could create. Green, no problem. But blue was a stickler, and without the ability to create blue diodes, today&amp;#039;s white LEDs\u2014which are everywhere from our homes to our headlights\u2014would not be possible. Scientists Isamu Akasaki, Hiroshi Amano and Shuji Nakamura won the Nobel Prize in Physics today for their work to produce bright blue light from semi-conductors. Where researchers first discovered in the 1950s and 60 that running electrical currents through some semiconductors allowed them to create red and green light, yon need those colors and blue to combine into white light. The Nobel trio unlocked the secrets of blue light in the 1990s.  (Photo Credit: Illustration by Johan Jamestad/The Royal Swedish Academy of Sciences) The physics Nobel often goes for somewhat arcane or hard-to-grasp discoveries. But there&amp;#039;s no mistaking the real-world importance of this innovation. LEDs now light up our TVs. LED bulbs are replacing the incandescents in our homes. LEDs will one day allow our cars to have smart headlights that dim part of their beams to avoid blinding oncoming drivers. And, as the Nobel Prize press release notes: &amp;quot;The LED lamp holds great promise for increasing the quality of life for over 1.5 billion people around the world who lack access to electricity grids: due to low power requirements it can be powered by cheap local solar power.&amp;quot; "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/technology/a12636/let-there-be-a-nobel-led-innovators-win-physics-prize-17288215/>